Explore topic-wise InterviewSolutions in Current Affairs.

Two gaseous equilibria $S{O}_2\left(g\right)+\frac{1}{2}{O}_2\left(g\right)\rightleftharpoons S{O}_3\left(g\right)$ and $2S{O}_3\left(g\right)\rightleftharpoons 2S{O}_2\left(g\right)+O_2\left(g\right)$ have equilibrium constants $K_1$ and $K_2$ respectively at $298K$. Which of the following relationships between $K_1$ and $K_2$ is correct:

How much copper can be obtained from 100g of copper sulphate (CuSO₄)?

Which of the carbon atoms present in the molecule given below are asymmetric?

(a) 1,2,3,4 (b) 2,3 (c) 1,4 (d) 1,2,3

The correct increasing order of heat of hydrogenation for the following compounds is:

The equivalent conductance of $0.1\text{N}$ solution of $MgC{l}_2$ is $25{\Omega }^{-1}{\text{cm}}^2{\text{eq}}^{-1}$ at $25{}^{\circ }\text{C}$. A cell with electrodes that are $2{\text{cm}}^2$ in surface area and $0.5\text{cm}$ apart is filled with $0.1\text{N}MgC{l}_2$ solution. How much current $\text{(in A)}$ will flow when the potential difference between the electrodes is $5$ Volts?

General formula of primary alcohol is [CPMT 1975]

The oxidation state of Oxygen in $K{O}_2$ is

The product(s) when dichlorine hexoxide reacts with $NaOH$ is(are):

Least stable alkene among the following given alkenes is

The standard enthalpies of formation at $300\text{K}$ for $CC{l}_4\left(l\right),H_{2}O\left(g\right),C{O}_2\left(g\right)$ and $HCl\left(g\right)$ are $-107,-242,-394$ and $-93{\text{kJ mol}}^{-1}$ respectively. The value of $\Delta U$ for the following reaction at $300\text{K}$ is:

$CC{l}_4\left(l\right)+2H_{2}O\left(g\right)\to C{O}_2\left(g\right)+4HCl\left(g\right)$

AT temperature T, a compound $A{B}_2\left(g\right)$ dissociates according to the reaction,
$2A{B}_{2\left(g\right)}\rightleftharpoons 2A{B}_{\left(g\right)}+B_{2\left(g\right)}$ with a degree of dissociation, x (where x << 1). If KP and P are equilibrium constant and equilibrium pressure respectively, the value of x is

The enthpaly combution at $25{}^{\circ }C\text{of}{H}_2$, cyclohexane $\left(C_6{H}_{12}\right)$ and cyclohexene $\left(C_6{H}_{10}\right)$ are $-241,-3920$ and $-3800\text{kJ/mol}$ respectively. The heat of hydrogenation of cyclohexenes:

One mole of an ideal gas at standard temperature and pressure occupies 22.4 L (molar volume). What is the ratio of molar volume to the atomic volume of a mole of hydrogen? (Take the size of hydrogen molecule to be about 1). Why is this ratio so large?

Assertion: Plastic bags remain as harmful substances in both soil and water.

Reason: Soil microflora lacks bio-catalysts for rendering plastics harmless.

The electron energy in hydrogen atom is given by $E_n=(–2.18\times {10}^{–18})/n^2$ J. Calculate the energy required to remove an electron completely from the n = 2 orbit. What is the longest wavelength of light in cm that can be used to cause this transition?

Write
structures of the compounds whose IUPAC names are as follows:

(i)
2-Methylbutan-2-ol

(ii)
1-Phenylpropan-2-ol

(iii)
3,5-Dimethylhexane −1, 3, 5-triol

(iv)
2,3 − Diethylphenol

(v)
1 − Ethoxypropane

(vi)
2-Ethoxy-3-methylpentane

(vii)
Cyclohexylmethanol

(viii)
3-Cyclohexylpentan-3-ol

(ix)
Cyclopent-3-en-1-ol

(x)
3-Chloromethylpentan-1-ol.

Cell constant is

In which of the following reactions Markovnikov’s rule is not observed?

Differentiate
between globular and fibrous proteins.

A pure substance which contains only one type of atoms is called: